A variety of train services running through Glasgow have been delayed and cancelled due to a major signalling fault.

The problems began at around 2.30pm when a signalling fault hit all services running via Rutherglen. At 3pm Scotrail announced that replacement bus services are now running between Glasgow and Motherwell, via Whifflet. All services services running through Rutherglen are 'cancelled, delayed or revised'.

The Rutherglen line re-opened at 3.55pm: "Train services running through this station are returning to normal but some services will still be cancelled, delayed or revised."

Also at around 2.30pm Scotrail announced a second signalling fault between Glasgow Central and Paisley Gilmour Street, with disruption expected to last until at least 7pm this evening. The post on Twitter added: 'Sorry about this.'

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An update from Scotrail's 'integrated control team' revealed further changes.

Central to Ayr and services to Gourock are now running half hourly. Central to Ardrossan Harbour is delayed, as are services to Largs and Wemyss Bay. Central to Paisley Canal is now an hourly service.

Commuters travelling between Dalmuir and Bridgeton towards stations between Carmyle and Whifflet have been asked to 'please use Glasgow City Centre as an interchange point for FirstBus services towards Whifflet'.

'Our colleagues at Network Rail are working as quickly as possible to try and rectify this fault.'

LATEST FROM SCOTRAIL (4.05pm): "Our colleagues at Network Rail have now repaired the signalling fault between Paisley and Glasgow and we're able to run trains through the area. There are still some trains significantly delayed so we're going to keep our contingency plan in place (Paisley Canals hourly; Ayr and Gourock half-hourly) until we're able to reintroduce a full robust service."